Thank you very much! it works for me ! i need the stk because i have 2 numbers in the sim and i didnt know how to activate it.
No such luck here - enabled, disabled, enabled, disabled, wiped caches, rebooted, hopped 100 times on my ri...
I run CyanogenMod, and it appears for me. And disappears when I disable my PIN.
I wonder if it's missing from my particular version - possibly due to my own efforts to fix the problem. Now that I've got the PIN set up, I need to get my hands on...
You create a new PIN in settings. You are probably confusing it with PUK code. The PIN code is so no one can access your SIM card without entering the 4 long code.
OK - it turns out that my old SIM PIN code was "1111", and I managed to guess it...